| 摘要 |
1346303 Circular saws IMPERIAL CHEMICAL INDUSTRIES Ltd 14 May 1971 [4 June 1970] 26994/70 Heading B5L Apparatus for trimming a longitudinally moving foam laminate 1, 2, 3, 4 comprises a frame 7 freely movable laterally of the direction of travel of the laminate, a pair of carriages 6, 6a adapted to be clamped to the frame at a preselected distance apart and movable with the frame, cutting means, e.g. circular saws 5, 5a, each mounted upon a respective carriage, means for continuously reusing lateral movement of the laminate, and means responsive to lateral movement of the laminate for causing corresponding lateral movement of the frame, carriages and cutting means. In one embodiment lateral movement of the laminate is detected by an arm 9 which controls a double-acting cylinder 11 connected to the frame 7, the latter being mounted in linear ball races 8. Alternatively the adjustment of the frame is effected by an hydraulic, pneumatic, electric or fluidic system. If the laminate includes a profiled lower surface the arm 9 may carry a wheel adapted to run along a groove or ridge in that surface. |
